(Some of these were already live, but I was lazy and didn't post the release notes!)

• Revamped the Search Search page so it uses a different layout
• Added functionality to "like" stacks
• Modified the Stack notification system so you receive one if something you liked is updated or commented on
• Add a new "Recently Updated" sorting option on the Stack Search page
• Changed the default sorting option on the Stack Search page to be "Published On"
• Added a link to the View Stack page from the My Stacks page
• Added a new "Book" item type
• Added new "Strategy Guide" and "Magazine" platforms
• Added Dreamcast (PAL) to the Browse by Platform page
• Added a link to the Goal Templates modal from the Game Details page
• Added a new filter to the Browse by Platform page for finding things on / not on your playlist
• Added a new filter to the Browse by Platform page for finding things with / without a completion